People place used household items, clothes, etc. in their yard and offer them for sale. Usually held on a week end, a "yard sale" often involves one, or a few families who pool their unwanted items to sell, often very cheaply.

Parallel term: "Yard saliing." To drive about from yard sale to yard sale.

The term yard sale is term that originated from snow sports such as skiing and snowboarding. The term is used to describe a massive wipeout in which the skier or snowboarder loses some articles of their clothing or even their poles, skis, or board. It is called a yard sale because after the wipeout, all the person’s clothing are laid out in the snow like they are on display in a yard sale.

Oh my god! Did you just see that kid yard sale off that ramp? That was hilarious.

This is a prank where you drive around town and pick up all the free stuff people leave on the side of the road. You then take this crap, pack it up in a truck, and then throw it on another lawn.. Then you put a 'yard sale' sign on their lawn, and as you drive away you scream YARD SALE!!!!!!!!!

P-Niz: Hey Trackus, you know what was fun?
Trackus: Nope..
P-Niz: When we dumped all that crap on that bitches lawn
Trackus: Oh Yeah! we totally got her with the Yard sale